F-9 Photographic Reconnaissance

Last revised May 20, 2007

The designation F-9 (F for "Foto") was assigned to photographic
reconnaissance conversions of existing B-17 bombers. This should not
be confused with the F-for-Fighter designation scheme, which was not
introduced until 1948.

Sixteen B-17Fs were converted to long range photographic
reconnaissance configuration by having their bombing equipment deleted
and replaced by photographic equipment. Some cameras were installed
in the nose and in the aft fuselage as well. These aircraft were
redesignated F-9. Some defensive armament was retained.

The designation F-9A was assigned to an unspecified number of B-17Fs
that were converted to photographic configuration in a manner similar
to that of the F-9 but differing in some camera details. All of these
planes were redesignated F-9B after further camera changes.

The designation F-9B was assigned to 25 photographic Fortresses
obtained by adapting some existing F-9As and by converting other
B-17Fs.

The designation F-9C was assigned to ten B-17Gs converted for
photographic reconnaissance in a manner similar to the F-9, F-9A, and
F-9B conversions of the B-17F. I have one photograph of a F-9C in
which the chin turret of the B-17G has been replaced by a housing for
tri-metrogen cameras. In 1948, the few surviving F-9Cs were
redesignated RB-17G, the R standing for "Reconnaissance".